<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>js数据类型测试</title>
</head>
<body>
<div>
    <h1>本网页是测试js的数据类型</h1>
    <hr>
    <script src="../js/class.js"></script>
</div>
</body>
</html>